Injecting Botox is actually more complicated and technical than many people realize, both lay person and physicians. The way Botox works is temporarily weakening muscles to soften them by blocking a neurotransmitter. What I have observed is that Botox affects people differently. In some people, Botox will last 2 months, in others 8 months.
The key issue with Botox is to get a followup treatment early enough so that your lines have not returned. The rationale behind this is that Botox will have a cummulative or additive effect with each treatment.
From what you have described, Botox was effective and you waited for lines to wear off as your sign for a return for more treatment. It is better to return for treatment based on movement rather than line formation. The effects can be outstanding by having each subsequent treatment better than the previous treatment.


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